1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include <stdlib.h>
#include "wasm_app.h"
#include "wa-inc/lvgl/lvgl.h"
#include "wa-inc/timer_wasm_app.h"
extern char g_widget_text[];
static void
btn_event_cb(lv_obj_t *btn, lv_event_t event);
uint32_t count = 0;
char count_str[11] = { 0 };
lv_obj_t *hello_world_label;
lv_obj_t *count_label;
lv_obj_t *btn1;
lv_obj_t *label_count1;
int label_count1_value = 1;
char label_count1_str[11] = { 0 };
void
timer1_update(user_timer_t timer1)
{
if ((count % 100) == 0) {
snprintf(count_str, sizeof(count_str), "%d", count / 100);
lv_label_set_text(count_label, count_str);
}
++count;
}
void
on_init()
{
char *text;
hello_world_label = lv_label_create(NULL, NULL);
lv_label_set_text(hello_world_label, "Hello world!");
text = lv_label_get_text(hello_world_label);
printf("Label text %lu %s \n", strlen(text), text);
lv_obj_align(hello_world_label, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
count_label = lv_label_create(NULL, NULL);
lv_obj_align(count_label, NULL, LV_ALIGN_IN_TOP_MID, 0, 0);
btn1 = lv_btn_create(
NULL, NULL); /*Create a button on the currently loaded screen*/
lv_obj_set_event_cb(
btn1,
btn_event_cb); /*Set function to be called when the button is released*/
lv_obj_align(btn1, NULL, LV_ALIGN_CENTER, 0, 0); /*Align below the label*/
/*Create a label on the button*/
lv_obj_t *btn_label = lv_label_create(btn1, NULL);
lv_label_set_text(btn_label, "Click ++");
label_count1 = lv_label_create(NULL, NULL);
lv_label_set_text(label_count1, "1");
lv_obj_align(label_count1, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
/* set up a timer */
user_timer_t timer;
timer = api_timer_create(10, true, false, timer1_update);
if (timer)
api_timer_restart(timer, 10);
else
printf("Fail to create timer.\n");
}
static void
btn_event_cb(lv_obj_t *btn, lv_event_t event)
{
if (event == LV_EVENT_RELEASED) {
label_count1_value++;
snprintf(label_count1_str, sizeof(label_count1_str), "%d",
label_count1_value);
lv_label_set_text(label_count1, label_count1_str);
if (label_count1_value == 100)
label_count1_value = 0;
}
}
|